土壤结构

稳渗阶段，C层土壤结构是入渗率的主要影响因子。

In the stable phase of infiltration , the soil structure of C horizon is the major factor affecting the infiltration velocity .

农林复合生态系统能够显著改善黑土区土壤结构，提高土壤养分质量分数，增加表层土壤的有机质和C／N。

Agroforestry eco-system can significantly improve soil structure , enhance the content of soil nutrient , and increase the organic matter and C / N in surface soil .

林地、果园间种籽粒苋能有效地改善林地小气候、改善土壤结构，并在一定程度上调节土壤水分状况，有效地增加土壤中P、K含量，改良土壤；

Inter-planting Grain amaranth can improve the microclimate and soil structure . It can also adjust the soil moisture , increase P and K contents , improve soil quality in some degree .

聚丙烯酰胺（PAM）可增加土壤结构的稳定性，但它对土壤水力传导能力的影响尚不清楚。

Polyacrylamide ( PAM ) can enhance soil structural stability , however its influence on soil hydraulic conductivity is not very clear .

在初渗阶段，入渗率主要受A1层土壤结构影响；

In the initial phase of infiltration , the soil structure of A-1 soil genetic horizon was the major influencing factor ;

聚丙烯酰胺（PAM）是一种新型高效土壤结构改良剂，对适宜的土壤它可抑制土壤表面结皮，增加土壤水分入渗。

PAM is a new and high efficient agent for improving the soil structure . It can control surface crusting of eligible soil and increase infiltration .

PAM作为土壤结构改良剂，具有增强土壤颗粒间凝聚力，维持良好土壤结构，增强土壤入渗性能，增加土壤含水量及抑制土壤水分蒸发等作用。

PAM as a soil conditioner , with enhanced soil particles cohesion , maintain good soil structure , increase soil infiltration properties , increasing soil moisture and reduce soil water evaporation effect .

结果表明，孔隙分形维数Dv可定量描述不同质地土壤结构，其模型预测精度优于颗粒大小分布估计的分形模型，可用于实际问题的研究之中。

The results show that pole fractal dimension Dv could describe soil structure of different texture and the model based on it produces better results compared with the fractal model obtained from the particle size distribution estimation .

通过2002～2003年夏玉米田间试验研究了不同耕作措施对土壤结构和养分的影响。结果表明：耕作后B2容重减少较多；

This paper investigated the effects of various tillage measures on soil structure and nutrient of summer maize through field experiments in 2002-2003.Results showed that : Through the measurement , the soil bulk density of B2 decreased much than that of check after tillage ;

当秸秆改良材料用量为10g、PAM含量为2%（处理10.2）土培60d时土样容重最小，土壤结构改良效果最佳。

When the dosage of the modified material is 10 gram , PAM content is 2 % ( treatment of 10.2 ), and the soil culture time is 60 days , bulk density is the smallest , and the improvement of soil structure is the best .

前期含水量对机械压实土壤结构特征的影响

Effect of Antecedent Moisture Content on Soil Structure Compacted by Machinery

降雨特性和土壤结构对溅蚀的影响

Study on Effects of Rainfall and Soil Structure on Raindrop Splash

基于改进遗传算法的接地土壤结构分析

Analysis on Soil Structure for the Grounding Projects with Improved GA

土壤结构的分形特征及土壤水分运动模型研究

A Fractal Study on Soil Structure and Soil Water Movement Model

土壤结构改良剂在盆栽花卉土壤上的应用研究

Application of soil conditioners to the soil of potting flower-plants

高分子土壤结构改良材料的研究及应用

Development and Applications of Polymer Materials for Improving Soil Structure

论蚯蚓对土壤结构形成及性态的影响

The influence of Earthworm on the formation of soil structure

多层土壤结构立体地网通用接地计算软件包的开发

Development of Grounding Calculation Software for Three-Dimension Grounding Grid in Multi-Layer Soils

复杂土壤结构下的接地系统建模及降阻措施

Modeling of Grounding System and Resistance Reducing Measure in Complicated Soil Structure

不同植被恢复模式土壤结构特征与健康评价

Structure Characteristics and Health Evaluation of Soil in Different Vegetation Restoration Communities

半干旱典型草原区封育草地土壤结构特征研究

Soil Structural Properties of Enclosed Steppe in the Semiarid Area

地膜覆盖栽培的土壤结构与空气状况研究

Soil Air Regime and Soil Structure of the Fields under Plastic Mulching

河北省主要土壤结构状况的初步探讨

Preliminary study on soil structure regime in Hebei Province

将新的土壤结构分形维数应用于对土壤水分运动参数的描述，使饱和导水率和非饱和导水率预测的准确性有了很大程度地提高。

To describe soil water movement with fractal model .

贡嘎山东坡亚高山林区土壤结构综合评价

Synthetical Evaluation of Soil Structure under Subalpine Forests on East Slope of Gongga Mountain

土壤结构为咖啡色壤土覆盖红/黄黏土，基底为页岩。

Soil structure is brown loam over red / yellow clay with underlying shale .

高聚物对土壤结构改良的研究Ⅲ.聚丙烯酰胺对赤红壤的改良研究

Studies on Polymeric Soil Structure Amendments ⅲ . Amelioration to Lateritic Red Soil by Polyacrylamide

研究表明不同灌水定额（375525m3/hm2）对产量的影响较小，这主要与该地的土壤结构有关；

The experimental results indicate that irrigation quota has the less influence on the yield .

此外，还研究了土壤结构稳定性与土壤地带性的关系。

The relation of structural stability of red soils to soil zonality was also discussed .

采矿造成煤矿区土壤结构破坏、养分缺失等严重问题。

Soil structure destroyed , nutrient losing and other environmental problems are caused by mining .